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Ask Slashdot: Building a Web App Scalable To Hundreds of Thousand of Users?

t00le Scalability (274 comments)

I would likely build a front-end using a couple HAProxy load balancers hitting an Apache cluster running opencluster. Use red-black trees with mySQL and cluster a few databases across multiple locations. I would build the front-end with Python and html5, as well as using iphython for cluster controls and other fun stuff.

In my case I have a rack of HP p-class blade servers that use an Amazon EC2 Centos box to route inside/outside of EC2. When we test something out we use my cluster at home, then when we roll an app or website out we keep it at my house. If the load gets high, then we simply modify the cluster to bring up slave web servers, cache servers, etc. In our case we build the backend first and can roll out an app or web service for very little money or resources, but if we have success with something we just leave it on EC2 since it can likely pay its own bills.

about a year and a half ago
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The Headaches of Cross-Platform Mobile Development

t00le Re:Thank You (197 comments)

A huge portion of our applications now are enterprise class crm solutions, so easy portability to multiple platforms is something we offer as a courtesy. There is always an officer or VP that must be that special snowflake that requires Apple support, even though the other ten thousand people use Linux or Windows.

We have Amazon EC2 services and simply need front ends for access, manipulation, reporting, etc. We have little to no need to have really amazing, shiny and pretty interfaces. Between ICS and iOS 5.x we have almost identical user interfaces with nice transitions and pleasant looking graphics. The thing that matters is speed of access to S3 buckets and read/write access to EC2 clustered databases. The nice thing is we can compile to Linux, Windows, almost all mobile platforms and have almost identical user interfaces. Instead of spending copious amounts of time on one platform, we create portable interfaces that are nice, fast and compile on just about anything, even the magical over hyped/marketed products. :)

Cheers

more than 2 years ago
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The Headaches of Cross-Platform Mobile Development

t00le Re:Not that bad (197 comments)

Apple can reject your app for any reason they seem fit, whether right or wrong. We have written a handful of apps that are on the market with RunRev, three were approved without issue and two were rejected.

more than 2 years ago
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The Headaches of Cross-Platform Mobile Development

t00le Not that bad (197 comments)

Check out LiveCode Runtime Revolution and you'll quickly dismiss this complaint, it has support for almost all desktops, tablets and mobile phone platforms. Write it once and it compiles for the platform in native code.

We use the hell out of it for the reason discussed above, not to mention that it allows you to build attractive cross platform products.

more than 2 years ago
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Researchers Build TCP-Based Spam Detection

t00le Re:Why do we keep doing this? (81 comments)

All we need is a global white list that allows trusted communication between peers. In the event spam is being sent from a member of the white list all of the email from that party would be flagged as suspect for 24 hours, then change to spam until the issue is rectified.

The problem is the lack of response from certain parts of the world, where I block tcp/udp connections from already. I have no issues with allowing people to communicate freely, but I have no issues with my libido and no need to buy Xanax.

more than 2 years ago
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System Recognizes Emotions In People's Voices

t00le Old news (127 comments)

Real time speech analytics for call centers has existed for seven years. The better products came out of Israel, at least the first and second generation IP Telephony capable systems. Inflection based triggers have existed in traditional TDM systems for over twelve years, so not real sure why this specific article is so intriguing. Just about any high end inbound call center will use some form of inflection and emotion algorithmic processing, more so once you get into the arm pit of finance, collections.

The systems I manage process over 500 million calls per month, across multiple industries and pbx vendors. The majority of the volume is processed using Cisco and Interactive Intelligence products, with an assortment of one off custom solutions. Of that 500 million calls per month, over 30% of the calls have used some form of inflection and emotional detection within the last eight years.

*yawn* another slow news day?

more than 2 years ago
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LulzSec Target the Sun After Phone Hacking Scandal

t00le Karma (363 comments)

Karma is a bitch

more than 3 years ago
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US Begins Sophisticated Wireless Jamming Project

t00le Old Technology in a new dress (157 comments)

This technology has been around since the 60's and was used before the Vietnam war, as well as during the Vietnam War makes this non-news.

Do a little research and you will find out that during the Apollo moon mission that Army Intelligence at Ft Hood jammed a frequency outside of the listed bands. Apparently they were field testing high powered multi-frequency jammers before being deployed into Vietnam. The field manual was very light and they were instructed to avoid certain bands that were coded red. It turned out to be a private frequency for NASA, which caused a two minute loss of communication with the Apollo team. The reason they knew about the Apollo comm link was two truckloads of intelligence spooks arrive at the site of their outpost. They were interviewed and informed that they had inadvertently knocked Houston's comms down and caused a two minute panic because the primary frequency and the backup frequency were unavailable for communication with the Apollo astronauts.

VFW halls, best halls.

more than 3 years ago
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Report Claims Iran Has Data To Build a Nuclear Bomb

t00le Re:Perfectly Legal (630 comments)

Post-Revolution I can only think of the Iran-Iraq conflict and we know who the US funded. My comment referred to their history of keeping their word, not their hungry desire for spilling the blood of the infidels. Nukes have a long history to act as a deterrent to invasion, which complicate things in the middle east (especially for the Israelis).

about 5 years ago
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Report Claims Iran Has Data To Build a Nuclear Bomb

t00le Re:Perfectly Legal (630 comments)

Iran has a very long history of keeping their word on International matters. Let's not also forget their glowing history with their prisoners (civilians) and that whole pesky voting fraud thing.

Whether they like it, somethings about to give based on the assorted leaks from the Intelligence communities. If the UN doesn't do something quickly, those pesky Jews that Iran hates so much may help "slow" their nuclear goals.

about 5 years ago
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Artificial Heart Recipient Has No Pulse

t00le Heart Mate II Pump (465 comments)

She is holding a Heart Mate II pump...most of our patients get this model...and NONE have a regular pulse. Funny since this is just breaking news and St Lukes Heart Transplant do it day in and day out, for a loooong time.

about 5 years ago
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Archiving Digital Artwork For Museum Purchase?

t00le Blended solution? (266 comments)

I would provide backups in tape, cd, dvd, usb flash, sd card, external hd and anything else that can hold the work. Hopefully they will keep adding other backup technologies, but once you're dead who cares. Right? :)

about 5 years ago
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Student Designs Cardboard Computer Case

t00le Re:Let me count the ways... (329 comments)

It's basically a slow news day and any quasi-hippie article will make the front page....film at eleven

First off the cardboard case will have to find a moronic PS company to allow their power supply to be put inside a paper case if they want to enter the brick-and-mortar sales market. I can think of very few companies that would jump at that idea to be quite honest since it's pretty fucking stupid. I know corrugated carboard, but I wouldn't put my $700 GPU and quad CPU's in it to appear to care more about the environment. In reality the case isn't the problem, but more of the poisons used in the manufacturing (and lack of common disposal) process that wind up in our dumps, instead of approved facilities.

Put a heavy corrugated box in a hot ass garage during a Texas or Arizona summer, then chat with me about the longevity of even high-end cardboard. I specifically am referencing very highend optical router boxes from Cisco/Juniper that I have in my garage, which are breaking down after a few months. Water as we know enjoys PAPER, which isn't normally a problem unless you are a fucking moron and put your computer parts INTO THE BOX. Since you apparently think it's odd to put a coating on something to improve the fire resistance (and subsequently water resists) I must say, you must be a raging moron. If you are running on ten years hardware, then sure I can see your point that the case storing your assorted drivel shouldn't be fire or water tight since a random short will always cause a fire, so will the bumped glass of -your favorite beverage-.

All of this under the concept that a paper case is much better than a metal one. Both are recyclable, but one is more resilient and a more practical solution. In fact the de facto metal one exists because it has a place, whereas a paper case is a problem looking for a solution.

more than 5 years ago
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Student Designs Cardboard Computer Case

t00le Let me count the ways... (329 comments)

I think its a good idea, but it will require a good fireproof coating to pass UL certification, along with being rigid enough to hold a beer or computer books. Just at a glance the idea does have some flaws though, mainly heat will make it brittle over time since it's still paper /w a coating, it poses a fire risk, it will not dampen much noise and vibrations will probably cause it to wear out much quicker, than say METAL that is already recyclable.

more than 5 years ago
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Jumpgate Evolution Dev Talks Class Balance

t00le Re:JGE v EVE (86 comments)

I have been playing Eve for over six years now and only because Descent and Freelancer got boring. I think they are positioning themselves to take a huge portion of the Eve player base, which used to play the previously mentioned games. Eve is boring because of the navigation and the huge amount of PvE that the game is based around. At times it seems the entire framework of the game is centered around the carebears mining or building shit in station, which is needed in a pure sandbox environment. The idea that they are basing the framework of the ship class balancing around PvP excites me. That way when it goes live all the PvP'ers from Eve will haul ass and never look back while the carebears in Eve wonder why the market crashed and they are unable to sell anything.

I know a very significant number of people across numerous large alliances in Eve that will bail when Star Wars or JGE is released. The sandbox of Eve has gotten boring as of late....

more than 5 years ago
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Which Game Series Would You Reboot?

t00le Reboot please (1120 comments)

Descent
Freelancer
Mechwarrior

more than 5 years ago
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Cocaine Test Prompts Red Bull Removal In Germany

t00le hrmmm (290 comments)

Seems odd that the tests have only popped up in Germany. All it takes is some bored German worker to drop a few grams of coke in their Red Bull, then complain to the government after they fail a drug test. :P

more than 5 years ago
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Virgin American In-Flight Internet Review, From In-Flight

t00le Re:Crypto (198 comments)

I didn't added QoS into my original post. If you VPN into work or home you can remove their ability to filter or tag your connections through a VPN. By tunneling everything through a VPN it would be a true test since anyone with a clue will set crypto traffic with a high priority on a border network.

If it's still unusable it will be due to errors on the transmission, which with tcp would be classed as slowness. With UDP it would be missing packets that are not re-transmitted.

An analogy, in quake w/ tcp code you would hump a wall when lagged, but with udp you would teleport through the wall.

more than 5 years ago
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Virgin American In-Flight Internet Review, From In-Flight

t00le Crypto (198 comments)

You might want to try to vpn into work or home, then try to use Skype. Chances are they filtering what ports are allowed, so going through a crypto tunnel will remove this ability.

more than 5 years ago

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